package com.moody.hibernate.dao;

import java.util.List;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.moody.hibernate.domain.UserRole;

/**
 * A data access object (DAO) providing persistence and search support for
 * UserRole entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see com.moody.hibernate.domain.UserRole
 * @author MyEclipse Persistence Tools
 */

public class UserRoleDAO extends HibernateDaoSupport {
	private static final Logger log = LoggerFactory
			.getLogger(UserRoleDAO.class);

	// property constants

	protected void initDao() {
		// do nothing
	}

	public void save(UserRole transientInstance) {
		log.debug("saving UserRole instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(UserRole persistentInstance) {
		log.debug("deleting UserRole instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public UserRole findById(com.moody.hibernate.domain.UserRoleId id) {
		log.debug("getting UserRole instance with id: " + id);
		try {
			UserRole instance = (UserRole) getHibernateTemplate().get(
					"com.moody.hibernate.domain.UserRole", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(UserRole instance) {
		log.debug("finding UserRole instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding UserRole instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String hql = "from UserRole as model where model."
					+ propertyName + "= ?";
			Session session = getHibernateTemplate().getSessionFactory().openSession();
			Query query = session.createQuery(hql);
			query.setString(0, value.toString());
			List<Object> resultList = query.list();
			session.close();
			return resultList;
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findAll() {
		log.debug("finding all UserRole instances");
		try {
			String queryString = "from UserRole";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public UserRole merge(UserRole detachedInstance) {
		log.debug("merging UserRole instance");
		try {
			UserRole result = (UserRole) getHibernateTemplate().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(UserRole instance) {
		log.debug("attaching dirty UserRole instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(UserRole instance) {
		log.debug("attaching clean UserRole instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static UserRoleDAO getFromApplicationContext(ApplicationContext ctx) {
		return (UserRoleDAO) ctx.getBean("UserRoleDAO");
	}

	public void deleteUserRoleByUserId(String userId) {
		String hql = "delete from UserRole as model where userId = ?";
		
		Session session = getHibernateTemplate().getSessionFactory().openSession();
		Transaction trans=session.beginTransaction();
		Query query = session.createQuery(hql);
		query.setParameter(0, userId);
		if(query.executeUpdate() > 0)
			log.info("删除成功");
		else
			log.info("删除0个元素");
		trans.commit();
		session.close();
	}

	public void insertUserRole(List<UserRole> userRoleList) {
		log.debug("saving userRoleList instance");
		try {
			getHibernateTemplate().saveOrUpdateAll(userRoleList);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}
}